Coupling.



c. BOYD.

COUPLING.

APPLICATION FILED APR.29, ISII4.

Patented Ap1.6, 1915.

DU Lin 2 men ASHE $GUYLLTH To all whom if; may concern: v

Be it known that LCrJrrouo Bozo, citizen of ne UnitedStates residii'igzit Sunnis, in the sintv of he tire and State of "Wash- :in. new anduseful.

ln lli: 11% invented si lings, of "which the 11g is spe mien, referencesein had to the accompanying drawings This invention relates to animpived 105 3 coupling and has for primary object to provide improvedmeans whereby the coupl ng heads may be eas v and expeditiouslycoi'inected or disconnected.

The invention has for it further object to provide coupling includingmole and "female coupling heads nd a rot iteble lookingmember mountedthe rernele heed adapted to cooperate "with means on the male couplinghead to securely lock said heads together.

The invention has for another ob ect to produce 2. device of the abovecharacter I which is extremely simple in its construcinule coupling head'7 tion, highly serviceiible durable in practicel use and may bemanufactured at coinaretively small cost.

With the above and other objects in view as will become hppurent as thedescription proceeds, the invention consists in certain constructions,combinations and arrange-- ments of the parts that i shall hereinafterfully descri ie and claim.

For a fu l understanding or the invention. reference is to be had to thefollowing description, and accompanying drawing, in which- Figure 1 e psthe preferred einoo hose coupling;

.iective yiew illustrating diment of my improved 2 a top plan View, thecoupling heads being disconnected. Fig. 3 is a transverse section takenon the line 3-3 of 2; Fig. l is a detail perspective view of the lookingmember.

Referring in detail to tn. dre lug, 5- and 6 respectively designate thetwo sections of hose to be coupled together. i The hose section 5 isprovided upon one end Witl the which consists of a tubulni shankprovided intermediate or its ends with an integral annular flange 8.Upon one side or this flange, the shank of the pling member is formedwith annular 'gwi'i'phcrnl ribs 9 for gripping engagement with the wallof the hose Longituiinnilv evteudiug oppositely disposed. ribsSpecification of Letters fretent.

.ii epiioation filed April 28,

E-otented h, 1915.

391d. Serieljh'o835fi33.

or flanges "l0 integrally formed with the flange 8 and the tubular shankofthecoupling n'iernber. Each of these longitudinal ribs isprovided inits outer face with a recess 11 and at one end of said. recess, a stoppin 12 is threaded or otherwise secured in the rib for a purpose whichWill be hereinafter referred to. Upon the end of the other hose section6, the female coupling member 13 is arranged, said member including anipple'l: for insertion in the end of the hose and an enlargedcylindrical body 15. The externel'diameter of this body is substantially equivalent to that of the flange 8 on the mole coupling member.The female coupling member isprovided in the well of its body 15 stdiametrically opposite points with the longitudinally extending slots 16which are designed to receive toe longitudinel ribs or flanges of themale member 7. The body is further, provided with an annular peripheralgroove 13 intersecting the slots 16, and on one side of said body, andat one edge of the groove 17, an arcuate recess 18 is provided formingthe opposed stop shoulders 19. i

20 designates the locking band which consists of a metal strap bent intosubstantially circular form and having its ends laterally extended, oneof said ends being longer than the other and bent over upon the shorterend as indicated at 21. lhese lapped extremities ot the metal strap areprovided with coinciding openings to receive the connecting bolt 2'2upon one end of which the nut 23 is threaded. The circular locking bandis engaged in'tlie annular peripheral groove 17 of the female couplingmember said band at diametrirmlly opposite points (being outwardlyoii'set as art 24'. and spacedfrom the periphery of the coupling member.This band is further provided upon one edge with a lug 25 which isdisposed for movement in the ercuote recess 18 formed in the peripheryof the body 15 at one side of the annular groove 17.

- members is obviated.

l6. Whpn the ends of said ribs engage the inner ands of the slots 16,the recesses 11 in the outer faces of the ribs coincide with the annulargroove 17. The locking band 20 is now turned to dispose the portionsbeeach of the offsets 2i therein is inclined as shown at 26. Theseinclined edges of the band riding against the pins 12 as the widerportions oi the band move into the recesses 11 forces said bandlaterally into frictional binding engagement with one edge 01" theannular groove 17, provided in the periphery of the female couplingmember. Thus accidental or unintentional rotation of the locking bandupon the connected coupling It will of course be understood thatbyreversing the above de scribed operation, the coupling heads may bereadily disconnected.

From the foregoing description taken in connection with the accompanyingdrawing, it is believed that the construction, manner of operation andseveral advantages of my invention will be clearly and fully understood.The device is very serviceable in practical use and enables the hosesections to be very easily and quickly'connected or;

disconnected. A hose or pipe coupling constructed in accordance with myinvention, is highly efficient and reliable and will securely lock thecoupling heads together against possibility of accidental disconnection.As the device embodies but very few parts in its construction, which areall of simple form, it will be further appreciated that the same is verydurable and may be produced at small manufacturing cost.

It will be noted that one edge of the locking band adjacent While I haveshown and described the preferred construction and arrangement of theseveral elements, it will be understood coupling members, said femalemember being provided with diametrically opposed longitudinal slots anda circumferential groove intersecting said slots, said female memberalso having a circumferentially extending v recess in its peripherycommunicating with said groove, said male member being provided withlongitudinal ribs to be received in the respective slots and said ribshaving recesses in their outer 'faces to register with said groove, anannular locking band movably mounted in said groove and flush with theperiphery of the female member, pins secured in the recesses of the ribson the male member with which said band is adapted to cooperate, wherebythe band when turned,

is shifted laterally in the recesses of said ribs and into bindingengagement with one;

edge thereof and with the corresponding ed e of the groove in saidfemale member, and a lug pro ecting from one edge of said CLIFFORD BQYD.Witnesses:

BEATRICE M. Soannsnn,

W. G. VON WEEL.

} band and movable in the circumferential re= 'cess in the femalemember, said lug being

